Temperature-dependent dual-mode thermal management device with net zero energy for year-round energy saving.

ABSTRACT: Reducing needs for heating and cooling from fossil energy is one of the biggest challenges, which demand accounts for almost half of global energy consumption, consequently resulting in complicated climatic and environmental issues. Herein, we demonstrate a high-performance, intelligently auto-switched and zero-energy dual-mode radiative thermal management device. By perceiving temperature to spontaneously modulate electromagnetic characteristics itself, the device achieves ~859.8 W m^-2 of average heating power (∼91% of solar-thermal conversion efficiency) in cold and ~126.0 W m^-2 of average cooling power in hot, without any external energy consumption during the whole process. Such a scalable, cost-effective device could realize two-way temperature control around com

SUBMITTER: Zhang Q 

PROVIDER: S-EPMC9391366 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature